A valid credit card number has several fields and each of them has a meaning. For the technically inclined, this number complies to the ISO 7812 numbering standard. An contains a six-digit issuer identification number (IIN), an individual account identification number, and a single digit checksum.
The credit card numbers you generate on this page are completely random. When we say they are valid, we merely imply that they are a possible combination of characters which will validate when passed through the MOD 10 algorithm. You can also generate valid credit card numbers for specific Issuing Networks by utilising their particular prefixes. However, we do not provide you (obviously) with the correspondent verification code for these cards, as they are completely fake and made up randomly.
If you've ever found yourself trying to try a product online which required a credit card, even when you just want to take a look, you know why we made this. We believe there's no need to share such information with providers without the actual intent to buy stuff. Anyone can make a website with a form and require you to insert valuable and sensitive information which requires you to give up your privacy. This is a way to protect yourself in such situations.
The other reason we made this are programmers testing ecommerce websites, applications or other software. They usually need lots of fake data, and this is a very easy way to generate a bunch of valid credit card numbers in a split second. There's another tool for those times when you need to generate all other kinds of data.
If the card number is valid, you will also get the issuer of the card. CardGen is a really useful application if used with the intended purpose, and since it generates numbers randomly you shouldn't expect the app to generate Card Security Codes or the Expiration Dates. Remember that these cards are not real and making any transactions with these generated numbers are illegal.androidwidgetcenter.com
This is probably because this validator merely checks that the number supplied satisfies the LUHN-10 algorithm (which 42 satisfies since 4*2 + 2 = 10 which is 0 modulo 10). A better validator should maybe check for a minimal number of digits. I'm not sure this corresponds to the very latest code from jQuery...stackoverflow.com
As a software developer or tester, you may be required to know what is a valid credit card number and what is an invalid credit card number. According to industry convention, credit card numbers have special prefixes and MOD 10 checks. This page allows you to learn and test the structure of credit card numbers. Issuers include American Express, Diners Club, Discover, JCB, MasterCard, VISA, Voyager.sqa.fyicenter.com